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Principle for the Installation of Accommodation for Sick guards in Public Health Establishments in Brazzaville in the republic of congo

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Journal of Environmental Science and Engineering(B) 2024年第2期13卷 70-79页

作者： Alain Symphorien Ndongo Destin Gemetone Etou Christian Tathy Laboratory of Energetic Mechanics and Engineering(LMEI) National Polytechnic SchoolMarien Ngouabi UniversityBP 69BrazzavilleCongo National Superior Polytechnic School(ENSP) University Marien NgouabiBP 69BrazzavilleCongo Higher Normal School(ENS) University Marien Ngouabi BP 69Brazzaville Congo

The results of scientific studies of human social facts in the field of health show that the management of a patient should involve the patient’s entourage,whatever the status or size of the health *** healthcare establishments in the congo,the following are recognised as being responsible for medical care:specialist doctors,doctors,midwives,nurses and care *** patient’s family and close friends are responsible for looking after the patient and financing *** hospital infrastructure does not provide any space for the patient warden who accompany the patient during reception and *** makes congolese hospitals inefficient for patient *** can we integrate the function of the Sick guard and the assistance of the family,in order to reduce the mortality rate and repair the harm caused to patients requiring the presence of relatives during their stay in hospital,which is considered to be a dangerous place?This article examines the functional principles for configuring the space that patient warden would occupy in the patient care *** the basis of a documentary analysis of sociological and architectural studies of existing facilities,this article proposes a typical accommodation model with the spaces needed to ensure the well-being and effectiveness of the patient warden with the *** are rooms with minimum space for 2 to 4 individual beds,equipped with toilets and *** accommodation has a dining area,kitchen and laundry *** the future,this accommodation will become part of the hospital estate and may be occupied by orderlies and patient warden recruited by the hospital administration.

关键词： Sick guard patient public health establishment accommodation republic of congo

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Fatty Acid Composition of Hazelnut Kernel Oil from Coula edulis Collected in the republic of congo

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Food and Nutrition Sciences 2024年第4期15卷 290-297页

作者： Josiane Enzonga Yoca Jean Paul Latran Ossoko Yves Okandza Michel Didace Mvoula Tsieri Laboratoire de Contrô le et Qualit&#233 des Aliments de l&#8217Ecole Nationale Sup&#233rieure d&#8217Agronomie et de Foresterie Universit&#233 Marien NGOUABI Brazzaville Congo Université Denis Sassou NGUESSO Brazzaville Congo

Coula edulis is non-timber forest product (NTFP) used in Africa for its hazelnuts, which contain edible seeds with a demonstrated nutritional potential. However, there have been very few scientific studies of this species in the republic of congo. Thus, the aim of the current study was therefore to determine the fatty acid composition of the oil extracted from Coula edulis hazelnut seeds collected at random in the republic of congo. The oil was extracted using the Soxhlet method and its fatty acid composition was determined by gas chromatography. The extracted oil from Coula edulis hazelnut kernels is rich in monounsaturated fatty acids (95.28%), particularly oleic acid (94.5%), which classifies it as an oleic oil and gives it interesting nutritional and therapeutic properties. On the other hand, saturated fatty acids (4.15%) and polyunsaturated fatty acids (0.35%) are not well represented. Its low poly-unsaturated fatty acid content makes it more stable when stored at room temperature.

关键词： Coula edulis Fatty Acids Oil Seeds Hazelnuts republic of congo NTFP

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Coordination of Regulation Devices for Damping Power Oscillations in a Dynamic Disturbance Context: A Fuzzy Logic-Based Approach Applied to the Electrical Grid of the republic of congo

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Journal of Power and Energy Engineering 2024年第1期12卷 44-60页

作者： Mavie Grace Mimiesse Davy Rostand Souamy Loembe Smaël Magloire Elombo Motoula Désiré Lilongo-Boyenga Laboratoire du Génie É lectrique et &#201lectronique &#201cole Nationale Supérieure Polytechnique Université Marien NGOUABI Brazzaville Congo Institut Supérieur d’Architecture Urbanisme Batiment et Travaux Punlics Université Dénis SASSOU-N’GUESSO Kintelé Congo

This article presents a fuzzy logic-based approach to coordinate the control devices of the power system, such as Power System Stabilizers (PSS) and Static Synchronous Compensators (STATCOM), to damp power oscillations caused by dynamic disturbances. At first, we used the Lyapunov method to study the dynamic stability of the power grid in the republic of congo. This method allowed us to analyze the eigenvalues of the state variable matrix and highlight the eigenvalues in the complex plane. Secondly, we proposed a fuzzy logic-based controller to account for uncertainties existing near the thresholds. The inputs to this controller are the generator speed and generator rotor angle. We demonstrated the effectiveness and feasibility of this fuzzy control by applying it to the power grid of the republic of congo, with three power stabilizers and two STATCOMs. .

关键词： Fuzzy Logic STATCOM PSS Lyapunov republic of congo

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Soil Seed Bank of the Marantaceae Forests of Ouesso Forest Industry (IFO), republic of congo

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Open Journal of Applied Sciences 2023年第11期13卷 1935-1950页

作者： Stevy Endurance Nkellankela Chauvelin Douh Christian Moussoumbou Belvina Chardène Mabengo Larisa Mbouchi Malonga Saint Fédriche Ndzaï Félix Koubouana Laboratory of Geomatics and Applied Tropical Ecology (LGETA) Superior National School of Agronomy and Forestry (ENSAF) Marien N’GOUABI University Brazzaville Congo Department of Forest Ecology National Forestry Research Institute (IRF) Brazzaville Congo

The soil seed bank is a key indicator of natural regeneration and/or forests resilience after disturbances. This study evaluates the soil seed bank characteristics in two Marantaceae forests plots of Ouesso Forest Industry (IFO) in north of the republic of congo. In each plot, 12 samples were taken per soil layers (0 - 5 cm, 5 - 10 cm, 10 - 15 cm and 15 - 20 cm deep). Diversity and abundance seed were estimated after germination of soil samples. The results revealed 101 seedlings belonging to 17 species for plot 1 and 129 seedlings belonging to 15 species for plot 2. The average densities of germinated seeds were respectively 281 seedling/m2 and 358 seedling/m2. There were no significant differences (p > 0.05) between the mean densities of the two plots. Herbaceous species dominated with percentages of 71% and 73%, respectively in plot 1 and plot 2. Both plots showed potential of regeneration from the soil seed bank. However, this potential seems higher in plot 2. Pioneer taxa were more abundant in the soil seed bank of plot 1 (4 woody pioneer species) than in plot 2 (1 woody pioneer species). The highest species richness was obtained in the first two soil layers (0 - 5 cm and 5 - 10 cm depth) while 25% of species were exclusively found in the deepest layer (15 - 20 cm) in plot 2. The study suggests silvicultural interventions based on planting or enrichment techniques for contribute to sustainable management of Marantaceae forests that could prevent the growth and development of seedlings.

关键词： Soil Seed Bank Seedlings Marantaceae Forests Natural Regeneration Forest Resilience republic of congo

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Soil Seed Bank Characteristics of the Mbe and Nguela Shrub Savannas, and Implications for the Reforestation, republic of congo

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Open Journal of Ecology 2023年第7期13卷 435-453页

作者： Chauvelin Douh Christian Moussoumbou Belvina Chardène Mabengo Larisa Mbouchi Malonga Gilbert Nsongola Tite Miafouna Aimé Judicaël Mahoua Saint Fédriche Ndzaï Félix Koubouana Laboratory of Geomatics and Applied Tropical Ecology (LGETA) Superior National School of Agronomy and Forestry (ENSAF) Marien N’GOUABI University Brazzaville Republic of Congo National Forestry Research Institute (IRF) Department of Forest Ecology Scientific City of Brazzaville Brazzaville Republic of Congo Institute of Research in Exact and Natural Sciences (IRSEN) Scientific City of Brazzaville Brazzaville Republic of Congo

The soil seed bank is an important source of restoration and resilience of disturbed ecosystems. This study evaluates the regeneration potential through the soil seed bank of the shrub savannas of Nguela and Mbe in order to predict the eventual dynamics. Three plots of 0.25 ha subdivided into four sub-plots of 0.015 ha have been installed in each savannah. In total, 48 samples of each savannah, i.e. 96 samples of both savannas, have been taken from the soil layers, 0 - 5 cm, 5 - 10 cm, 10 - 15 cm and 15 - 20 cm. Species diversity and abundance of the soil seed bank have been assessed after germination. The results reveal 167 seedlings belonging to 23 species in the Mbe savannah and 144 seedlings belonging to 14 species in the Nguela savannah. The total densities of the germinated seeds were respectively 463.63 seeds/m2 and 400 seeds/m2. Nevertheless, the 20 cm deep layers have illustrated themselves compared to the superficial layers with densities of 16.29 seeds/m2 and 21.66 seeds/m2, respectively, in the savannas of Mbe and Nguela. Herbaceous species largely dominated, with percentages of 91% and 100%, respectively, in the savannas of Mbe and Nguela. Alone, the Trema orientalis (L.) Blume species has been identified as woody species in the Mbe savannah. The greatest specific richness has been obtained in the first five centimeters of soil, with 21.73% and 28.57% of exclusive species, respectively, in the savannas of Mbe and Nguela. The results reveal that restoration through the soil seed bank would be limited to a single woody species found (T. orientalis). Consequently, the study suggests silvicultural interventions based on planting or enrichment techniques for sustainably managed savannas exposed to anthropogenic disturbances.

关键词： Soil Seed Bank Shrub Savannas Restoration Anthropogenic Disturbances republic of congo

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republic of congo’ Wood Products Exported to China: Insight of the Characteristics, Trends, and Perspectives for Sustainable Trade

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Open Journal of Forestry 2021年第2期11卷 135-152页

作者： Daniella Bienvenue Ondze Min Tong Richard K. Mendako School of Economics & Management Northeast Forestry University Harbin China

Wood products trade sector remains crucial for many countries’ economies. This is also for the republic of congo (RC) where wood is the second most exported natural resource. In this study, we aimed to determine the predominant wood products exported from the RC to China from 2007 to 2019, analyze the trends related to this trade, compare the quantities of wood products exported to China and other destinations, and determine the perspectives for the sustainable trade. The descriptive study using graphs and tables, non-parametric technique Kruskal-Wallis, pairwise comparisons, and SWOT analysis made up the methodological basis for this study. IBM SPSS Statistics 26 software supported data processing. The results showed that logs were mainly exported to China, 92.585% of the three major wood products quantity (Logs, Wet sawnwood, and Dried sawnwood). Volume distributions between products categories differ significantly (Sig. = 0.000 < α = 0.05). Besides, a significant volume (69.32%) was exported to China compared to the other destinations, and volume distributions between different destinations differ significantly (Sig. = 0.000 < α = 0.05). The SWOT analysis describes weaknesses, strengths, opportunities, and potential threats related to RC’ wood products trade sector. The prospects for sustainable trade in wood products between the RC and China lie in establishing a good governance in the timber sector, supporting the emergence of domestic operators, and improving the business

关键词： republic of congo China Wood Products Export Sustainable Trade

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Fine Roots Dynamics in Two Forest Strata of a Semi-Deciduous Forest in Northern republic of congo

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Open Journal of Forestry 2021年第3期11卷 192-205页

作者： Edgard Fleury Koula Mikieleko Yannick Enock Bocko Grace Jopaul Loubota-Panzou Jean Joël Loumeto Laboratoire de Biodiversité de Gestion des Ecosystèmes et de l’Environnement Université Marien N’GOUABI BP 69 Brazzaville République du Congo

The belowground biomass is represented by coarse and fine roots. Concentrated in the superficial horizons of the soil, the fine roots play a crucial role in the functioning of a forest ecosystem. However, studies on their dynamics in natural forests are almost non-existent in the republic of congo. Here, we estimated the biomass, production, turnover and fine root lifespan of two forest strata of a semi-deciduous forest: the Gilbertiodendron dewevrei (De Wild.) J. Léonard forest (GF) and the mixed forest (MF) of land. The ingrowth cores method was used to estimate the biomass, production, turnover and lifespan of fine roots. The results of this study revealed that the biomass, production and fine root turnover of the two forest strata studied significantly decreased with increasing soil depth, with an increase in lifespan. The annual fine root biomass of GF (2284.50 ± 37.62 and 1034.61 ± 14.52 ) was slightly lower than that of MF (2430.07 ± 40.68 and 1043.10 ± 11.75 ) in the 0-15 cm and 15-30 cm horizons, respectively. The annual production of fine roots from these latter horizons was respectively 1300.19 ± 32.17 and 539.18 ± 11.55 in GF and 1362.24 ± 39.59

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Prevalence, Factors Associated with Obesity and Overweight among Students in Brazzaville in 2020

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Food and Nutrition Sciences 2022年第1期13卷 65-77页

作者： Simplice Innocent Moussouami Issiako Bio Nigan Yvon Rock Ghislain Alongo Polycarpe Gouthon François Mbemba Sport Health and Evaluation Research Unit (UR/SSE) National Institute for Youth Physical Education and Sport (INJEPS) University of Abomey-Calavi (UAC) Porto-Novo Benin Laboratory of Physiology of Effort and Biomechanics (LPB) Higher Institute of Physical Education and Sport (ISEPS) Marien Ngouabi University Brazzaville Congo

Background: The prevalence of obesity is increasing dramatically around the world and it is reasonable to assume that young people attending school in Brazzaville are not spared. The objective of this study was to determine the prevalence, as well as the factors associated with obesity and overweight among students in Brazzaville. Methods: This is a cross-sectional study, conducted as a questionnaire survey with 2052 pupils (869 boys and 1183 girls, aged 14 to 18). Obesity and overweight were determined from the body mass index and reference curves of the International Obesity Task Force (IOTF), the associated factors, by performing the logistic regression. Results: The prevalence of overweight in private and public institutions was 15.6% versus 5.5% (p and obesity prevalence was 4.0% versus 1.5% (p monthly income (OR = 1.73), car as a means of transportation (OR = 2.75) and family history of obesity (OR = 7.73). On the other hand, attending a public school, walking and high levels of physical activity had a protective effect against obesity in this population. Conclusion: The prevalence of obesity was higher in private institutions and required management and prevention strategies.

关键词： Adolescents Secondary Schools Weight Status Risk Factors republic of congo

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